.tabs span
  margin: 0 20px
  cursor: pointer
  color: #666
  &.active
    color: tomato
    border-bottom: 1px solid tomato
    font-weight: 560
    transition: all 0.3s ease

.con
  padding: 20px
  width: 400px
  margin: 0 auto
  overflow: hidden
  transition: all 1s ease
  interpolate-size: allow-keywords
  li
    display: flex
    flex-direction: column
    align-items: start
    margin-bottom: 10px
    border-bottom: 1px solid #ccc
    padding: 20px
